Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | Hydrol. Earth Syst. Sci. Discuss., 9, 4919–4941, 2012 Hydrology and www.hydrol-earth-syst-sci-discuss.net/9/4919/2012/ Earth System HESSD doi:10.5194/hessd-9-4919-2012 Sciences © Author(s) 2012. CC Attribution 3.0 License. Discussions 9, 4919–4941, 2012 This discussion paper is/has been under review for the journal Hydrology and Earth System Factors affecting the Sciences (HESS). Please refer to the corresponding final paper in HESS if available. runoff coefficient G. Del Giudice et al. Factors affecting the runoff coefficient Title Page Abstract Introduction G. Del Giudice, R. Padulano, and G. Rasulo Conclusions References Federico II University, Department of Hydraulic, Geothecnical and Environmental Engineering, Tables Figures Via Claudio 21, 80125, Naples, Italy Received: 31 March 2012 – Accepted: 4 April 2012 – Published: 17 April 2012 J I Correspondence to: G. Del Giudice (
[email protected]) J I Published by Copernicus Publications on behalf of the European Geosciences Union. Back Close Full Screen / Esc Printer-friendly Version Interactive Discussion 4919 Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | Abstract HESSD The runoff coefficient ϕ is a crucial parameter for flood peak discharge estimate in ungauged drainage basins. Tables and graphs generally allow the determination of ϕ 9, 4919–4941, 2012 in a somewhat empirical way that can lead to inconsistency in application; therefore, it 5 is important to identify other parameters that can be utilized to assess ϕ more directly. Factors affecting the In the present paper, focusing on Southern Continental Italy, a simple analytical ex- runoff coefficient pression between runoff coefficient ϕ and soil potential maximum retention S is pro- posed; moreover, an improvement of this expression is provided by considering the G.